Smoking pipe



June 24, 1952 F, MYERS 2,601,446

' SMOKING PIPE Filed Nov. 24, 1948 .2 2| n 32 vzo INVEN TOR.

I FREDERICK MYERS Patented June 24," 1952 UNITED` STATES PATENT lOFFICESMOKING PIPE Frederick Myers, Charlestown, Mass.

Application November Z4, 1948, Serial No. 61,757

(Cl. ISI-202) 2 Claims.

This invention relates to smoking pipes and has for its ygeneral objectthe provision of simple and inexpensive means whereby the pipe mayconveniently be cleaned and the products of com bustion, commonly knownas sludge, nicotine, tar, etc., may readily be removed, and also theprovision of means whereby such combustion products may be removed fromthe tobacco fumes before such fumes enter the pipe stem.

In the drawings accompanying and forming a part of this application,

Figure 1 is a central longitudinal section of a pipe embodying myinvention.

Fig. 2 is a similar section of a modification.

Fig. 3 is an elevation on an enlarged scale of the cup hereinafterreferred to.

Fig. 4 is a central longitudinal section of the condensation chamber anda portion of the tubular member affording a duct between the bowl andmouthpiece of the pipe.

Fig. 5 is a section on a still larger scale of the iilter provided forthe inner end of the condenser chamber.

Fig. 6 is an end View on the same scale as Fig. 5 of said lter.

In the particular drawings selected for more fully disclosing myinvention and the underlying principle thereof, said drawings to beconsidered as illustrative, merely, and not restrictive, I representsthe bowl portion of the pipe which consists of three sections, namely,the bowl section II; the socket section I2 at the lowermost end of thebowl portion and the section I3 intermediate the other two. Secured intothe intermediate section in any suitable manner by screw threads I4, asshown, or frictionally, is a tubular member I having an outwardlyfiaring upper portion I6, the lower end of said tubular member extendinginto the socket section aforesaid.

A cup I 'I is disposed in the socket section I2 and held in operativeposition by any suitable means, such as the bolt I8, shown in thepresent instance, the inner end of said bolt being engaged in theperipheral groove I9 formed in the cup. The compression spring 20 forcesthe end of the bolt in the groove and by means of the button or fingerpiece I8' the bolt may be moved axially to release the cup. Interposedbetween the cup and the intermediate section of the pipe portion is acompression spring 2| so disposed as to urge the cup outwardly when thebolt is moved to the right. The cup may be lined with a sheet ofabsorbent material 22 which may readily be removed when the cup issprung out of its socket and replaced by a clean sheet.

The stem portion 23 integral with said bowl portion, is provided withthe usual duct 24 be tween the bowl proper and the mouthpiece 25.

After the pipe has been used for a whileI the cup is sprung out of itssocket, as above de scribed, cleaned and replaced, but the spring 2l isso arranged that it will remain in the socket section I2 after the cuphas been removed therefrom. In the present instance, the uppermost spire26 of the spring is of greater diameter than the others and extends overthe flaring edges of the cup, thus being in frictional engagement withthe wall of the socket section I2.

As shown in Fig. 2, a tubular member 21 is disposed in the stem portionin register with the central longitudinal bore of the mouthpiece. Theinner end of said tubular member which may be of aluminum, or othersuitable metal, is enlarged both radially and axially to provide anexpansion chamber 28, the function of which is to cool the smoke beforeit enters the mouthpiece and the inner end of said chamber is providedwith filter means 29 of any suitable type. The lter means isfrictionally engaged with the end of the expansion chamber and, as shownin Figs. 4 and 5, the periphery of the filter may be grooved, asindicated at 30, to receive a peripheral rib 3| formed on the innersurface of the outer end of the expansion chamber.

In the manufacture of the pipe, the bore 32 in which the bolt isdisposed, is made by boring from the forward end of the bowl portion andthat portion of such bore to the left of the socket section is thenfilled with a plug 33.

In the form shown in Figure 2, the stem portion is bored from end to endto form the duct 34 and then said duct is reamed out or otherwiseenlarged suiiciently to accommodate the expansion chamber 28. Thetubular member 21 may either be integral with the enlargement thereofwhich forms the condensation chamber or else rigidly attached thereto byelectric welding or otherwise. The rearward end of said tubular memberabuts the forward end of the mouthpiece and, as the enlarged end thereofsnugly lits the bore in which it is disposed. the member 21 will remainfixedly in the position shown in Fig. 2.

Having thus described illustrative embodiments of my invention without,however, limiting the same thereto, what I claim and desire to secure byLetters Patent is:

1. A smoking pipe comprising in combination, a bowl, a mouthpiece, astem portion provided with a duct between said bowl and mouthpiece,

a removable upwardly-extending open-ended cup disposed beneath saidbowl, said bowl having a bore communicating with said cup and the outerperiphery of said cup being provided with a groove, a spiral compressionspring interposed between said bowl and saidV cup, said spring urgingsaid cup outwardly, a spring pressed bolt having its outer end inengagement with said groove for locking said cup in operative positionagainst the action of said compression spring and manually actuatedmeans for moving said bolt axially to release said cup.

2. A smoking pipe comprising in combination, a bowl section, a socketsection at the lowermcst end'thereof, a mouthpiece, a stem portionprovided with a duct between said bowl section and mouthpiece, aremovable cup disposed in said socket'section, said bowl section havinga bore communicating with said cup, a compression spring interposedbetween said bowl section and said cup, said spring urging said cupoutwardly, the uppermost spire of said spring being of greater diameterthan the othersy and being disposed for frictional engagement with thewall of said socket section whereby said spring will remain in saidsocket section after the cup has been removed therefrom, and manuallyactuated means for locking said cup in operative position Vagainst theaction of said spring. Y

FREDERICK MYERS.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS

